de.sihoooffice.com Reviews 

I have ordered a chair in April and it arrived 1st of May (in about a week) from the German store to Denmark. The chair I chose is the Sihoo V1, and it is a comfortable chair with amazing lumbar support, the head support is nice too.
Only annoying thing is, that the armrests do not lock in place (rotation wise - height wise they do). And the height of the armrests is pretty damn high, on the lowest setting it cannot fit under my desk (I am not sure what the height of my desk is, but the measurements of the chair are on the website, so it is my fault). Also, later I found out this chair is more recommended for average to taller people (I am 161cm), so maybe that's the reason for tall armrests. However, even with my height, the chair is comfortable, and everything is adjustable enough for me.

However, I was having a very hard time choosing between the Sihoo Doro c300 and the V1, and even contacted customer service.
I gave my height, weight and other details to the customer service and that I was specifically wondering which chair would be a better fit for me (FROM THESE TWO). Instead of actually helping, they just suggested the most expensive chair on the website (which I wasn't even looking at! Its way out of my budget, and I didn't even include it in my question?)...
So they were completely useless. Later I found out the Sihoo Doro C300 is more suitable for shorter people than the V1 (my luck lol), but I would say the V1 was the right choice due to a more adjustable lumbar support.

Tenia miedo tras ver otros comentarios sobre posible estafa y tal, pero todo lo contrario, parece todo falso, pero simplemente es una pagina no tan currada. Su chat es un robot pero te proporciona lo que necesites, por otra parte, pedi mi silla m57 el dia 14 y hoy dia 18 ya la tengo en mi casa, siendo enviada desde Alemania, siempre con seguimiento del pedido (aunque en paginas alemanas de mensajeria)
Estaba la silla en amazon a 265 y justo en la pagina había descuentos y la he podido comprar por 179.99€
En definitiva, totalmente recomendable.

I bought the chair in November through the site and the first week they wrote me saying it would take a while to arrive. I told them it was fine, but that I needed it as a Christmas present. If it was there by the 24th, then I would go ahead and if it wasn't possible, I would cancel the order.

They said no problem. Today is February 14 and the chair still hasn't shown up. I have sent them many emails. In January I had to move and the chair was still supposedly on its way in the tracking app. I told them that it had been months, that no one was living in the house anymore and that it would be picked up by my neighbor. They decided, without my consent, to send the order back and told me nothing. At the end of January I contacted them again and they told me they could not refund my money until the chair arrived back at the warehouse. Three weeks later, I am still claiming my money back and they tell me they will not refund it.

How is it possible if they have been three months to send a chair and it has not arrived? How is it possible if I have asked for a refund and by law they have to give it to me?

Compré una silla el día 24 de noviembre. Aunque en la página indica que el envio es gratis, me cobran 10€ por el envío.
Realizan el cobro sin problemas, pero, despues, indican que hay problema de stock, y que se retrasará el envio.
A día 4 de enero, sigo sin haber recibido nada.

Compro una silla que tiene buena pinta , me espero unos dias y me ponen en su pagina que la mandaron el 3 de octubre , entro con el numero de seguimiento y seur me dice que tienen solo aviso que no la mandaron que contacte con la empresa , no me contestan a ningun correo ni en ninguna plataforma , me da ami que pierdo la silla y el dinero , no recomiendo comprar nada en esta empresa es un desastre , al final supongo que me tocara denunciarlos.